Home / 27,858.01-38,443.93-15,282.49

Finding the Fourth Proportional to 27,858.01, 38,443.93 and 15,282.49

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Solution

The fourth proportional to 27,858.01, 38,443.93 and 15,282.49 is: 21,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.01 : 38,443.93 = 15,282.49 : x
  2. Step 2: Convert to fraction form
    27,858.01/38,443.93 = 15,282.49/x
  3. Step 3: Cross multiply
    27,858.01x = 38,443.93 × 15,282.49
  4. Step 4: Simplify right side
    27,858.01x = 587,518,975.79
  5. Step 5: Solve for x
    x = 587,518,975.79/27,858.01
  6. Step 6: Final answer
    x = 21,089.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.